The Descent of Man by Charles Darwin
= The Descent of Man by Charles Darwin
{c}
{title2=1871}
https://darwin-online.org.uk/converted/published/1871_Descent_F937/1871_Descent_F937.1.html
Volume I of the first edition. Chapters III, V and VII are the cited passages on social instincts, assistance and human races. The text's hierarchical judgments are historical claims to analyze, not categories adopted here.